[Cuis-dev] [FFI] Passing a GC collected record to C Code

[ken.dickey at whidbey.com]

On 2019-06-23 11:51, Philip Bernhart via Cuis-dev wrote:
> Hi,
> 
> how do I pass a struct, which is supposed to be
> fully lying in the memory space of the VM to some
> external C code which then copies data into that
> struct and does nothing with it afterwards?

Feature require: #'FFITests'.

Then browse, e.g. FFIPluginTests>>testBiggerStruct

C code corresponding to the tests is in the OpenSmalltalk git 
repository, e.g.:

https://github.com/OpenSmalltalk/opensmalltalk-vm/blob/Cog/platforms/Cross/plugins/SqueakFFIPrims/sqFFITestFuncs.c

HTH,
-KenD